Secondary tube heat seal tail cutter die

Abstract

This utility model discloses a heat-sealing and tail-cutting die for secondary tube throwing, relating to the field of tail-cutting die technology. It includes a front cylinder, a guide plate slidingly mounted on the top of the front cylinder, a rear cylinder slidingly mounted on the bottom of the guide plate, and buffers fixedly mounted on both sides of the rear cylinder. The utility model provides a method for the overall cutting of multiple tubes on a heat-sealing and tail-cutting filling machine, resulting in good cutting and shaping effects, an aesthetically pleasing appearance, and customizable cutting shapes. The design of the heat-sealing and tail-cutting die ensures the machining accuracy and wear resistance of the die, guarantees the airtightness of the mold by effectively blowing gas out through small holes, and enables customization, diverse shapes, and high-precision sealing. It also improves equipment stability, simplifies the die installation process, and enhances the durability of the die.

Description

Technical Field

[0001] This utility model relates to the field of tail-cutting die technology, specifically to a tail-cutting die for heat-sealing of secondary tubes. Background Technology

[0002] The heat-sealing and tail-cutting die for disposable tubular packaging is a specialized mold used in the production and processing of disposable tubular packaging. Its main functions include simultaneously achieving heat-melt sealing of the tube opening and cutting off excess tube tail. It is a core component in the tube forming process, ensuring both sealing performance and uniform appearance. It is widely used in the mass production of disposable serum tubes, ointment tubes, and disposable care tubes in the cosmetics, pharmaceutical, and daily chemical industries.

[0003] The existing filling and sealing equipment has a relatively simple shape for the tail of the secondary tube, which is not aesthetically pleasing and the cut edge is not smooth. Therefore, this set of secondary tube heat sealing and tail cutting die was designed. Summary of the Invention

[0004] In view of the problems existing in the current tail-cutting die, this utility model is proposed.

[0005] Therefore, the purpose of this utility model is to provide a heat-sealing and tail-cutting die for secondary tubes, which solves the problem of relatively simple cutting shapes and unattractive appearance.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] The secondary tube-throwing heat-sealing tail-cutting die includes a front cylinder, a guide plate slidably mounted on the top of the front cylinder, a rear cylinder slidably mounted on the bottom of the guide plate, buffers fixed on both sides of the rear cylinder, an air inlet fixed below the buffers, a rear die fixed below the buffers, multiple elastic pillars fixed at the bottom of the rear die, a guide slider slidably mounted on the bottom of the guide plate, a die holder fixed at the bottom of the guide slider, a blow-up block fixed on the top of the die holder, and a front die fixed on one side of the die holder.

[0008] Preferably, tail material funnels are engaged on both sides of the cutter holder, and the tail material funnels are arc-shaped.

[0009] Preferably, the guide rail plate is rectangular and made of stainless steel.

[0010] Preferably, the elastic column has a circular cross-section and is made of rubber.

[0011] Furthermore, a baffle is fixedly provided at the top of the tailings hopper.

[0012] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0013] This invention enables the overall cutting of multiple tubes on a single-shot tube heat-sealing filling machine. The cutting and shaping effect is good and the appearance is beautiful. Moreover, the cutting shape can be customized. The design of the single-shot tube heat-sealing cutting die ensures the processing accuracy and wear resistance of the die, and ensures the airtight performance of the die by effectively blowing out gas through small holes. The single-shot tube heat-sealing cutting die enables customization, diverse shapes and high-precision packaging, improves equipment stability, simplifies the die installation process and improves the durability of the die. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a schematic diagram of the top of the three-dimensional structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the left side of the three-dimensional structure of this utility model.

[0018] Explanation of reference numerals in the attached figures:

[0019] 1. Front cylinder; 2. Guide rail plate; 3. Rear cylinder; 4. Buffer; 5. Air inlet nozzle; 6. Rear die; 7. Elastic column; 8. Blow-up block; 9. Front die; 10. Guide rail slider; 11. Tool holder; 12. Tail material funnel; 13. Baffle. Detailed Implementation

[0020] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0021] This utility model discloses a heat-sealing and tail-cutting die for secondary tube throwing.

[0022] This utility model provides, for example Figure 1-3The secondary tube heat-sealing and tail-cutting die shown includes a front cylinder 1, a guide plate 2 slidingly mounted on the top of the front cylinder 1, a rear cylinder 3 slidingly mounted on the bottom of the guide plate 2, buffers 4 fixed on both sides of the rear cylinder 3, an air inlet 5 fixed below the buffers 4, a rear die 6 fixed below the buffers 4, multiple elastic pillars 7 fixed at the bottom of the rear die 6, a guide rail slider 10 slidingly mounted on the bottom of the guide rail plate 2, a die holder 11 fixed at the bottom of the guide rail slider 10, a blow-up block 8 fixed on the top of the die holder 11, and a front die 9 fixed on one side of the die holder 11. The secondary tube heat-sealing and tail-cutting die needs to be assembled with the secondary tube heat-sealing and tail-cutting filling machine first, fixing the die as a whole to the tail-cutting working position of the filling machine, ensuring that the die holder 11 is precisely aligned with the jig conveying path of the filling machine turntable. During the inspection, the connection status of each component is checked. The sliding cooperation between the guide rail slider 10 and the guide rail plate 2 is smooth, the air inlet nozzle 5 meets the airtightness standard, and the tail material funnel 12 is securely engaged with both sides of the cutter holder 11 without looseness, laying the foundation for subsequent continuous operation. Among them, the guide rail plate 2 is made of stainless steel, which can ensure the structural stability during long-term sliding and avoid positioning deviation due to wear. After starting the secondary tube heat sealing and filling machine, the filling machine turntable drives the fixture containing the secondary tube product to rotate at a preset rhythm. When the fixture moves to the tail cutting position, the turntable stops. At this time, the fixture and the front die 9 and rear die 6 of the cutting die form a corresponding positional relationship, ensuring that the secondary tube opening is exactly in the area to be cut. This positioning process relies on the coordinated calibration of the filling machine and the cutting die, providing a prerequisite for subsequent accurate tail cutting. When cylinder 1 is activated, its power is transmitted to guide slider 10 via guide plate 2, causing cutter holder 11, which is fixedly connected to guide slider 10, to move synchronously. This allows the front die 9 on one side of cutter holder 11 to quickly and smoothly adhere to the part of the secondary tube to be cut. The rectangular structure of guide plate 2 and the sliding cooperation of guide slider 10 restrict the movement trajectory of the front die 9, preventing it from shifting left or right during the contact process. This ensures that the contact position between the front die 9 and the opening of the secondary tube is precise and consistent, guaranteeing the subsequent cutting accuracy. While the front die 9 is adhering to the product, rear cylinder 3 is activated, driving rear die 6 to move towards the secondary tube. Multiple rubber elastic pillars 7 fixed at the bottom of rear die 6 first contact the secondary tube. The rubber elastic pillars 7 have good elasticity and can be slightly deformed under external force. The process involves smoothly pressing the secondary tube into the pre-set positioning plate of the filling machine. This avoids deformation caused by rigid compression and ensures the tube remains stationary during cutting through elasticity, achieving precise product fixation. Simultaneously, the buffers 4 on both sides of the rear cylinder 3 work to slow down the advance speed of the rear cylinder 3, preventing rigid impact between the rear die 6 and the product, protecting the die cutting edge and the appearance of the secondary tube. Once the secondary tube is fully positioned by the elastic column 7, the front die 9, driven by the die holder 11, performs the cutting action. Combined with the heat sealing function, the tail of the secondary tube is heat-melted and sealed, and excess tube tail is cut off. The high-precision machining of the die ensures a smooth cutting edge, enabling customized shape cutting and solving the problems of traditional die cutting with monotonous shapes and rough cuts.Compressed gas is introduced through the air inlet 5. The gas enters the air blowing block through a pre-set hole in the mold. The air blowing block directs the gas towards the cutting area. On the one hand, the gas helps the heat-sealed part cool and solidify quickly, ensuring airtightness. On the other hand, it can immediately blow off the tailings generated during cutting, preventing them from sticking to the die or secondary polishing tube surface. The blown-off tailings are guided by gravity and airflow, falling into the arc-shaped tailing funnels 12 that are snapped onto both sides of the die holder 11. The baffle 13 fixed to the top of the tailing funnel 12 can prevent tailings from splashing out of the funnel. The arc-shaped structure can guide the tailings to slide smoothly, facilitating subsequent centralized cleaning. The funnel adopts a snap-fit ​​design, which can be quickly disassembled and the tailings poured out without affecting the die connection. Continuing the operation, after the single tail-cutting process is completed, the rear cylinder 3 drives the rear die 6 and the spring column 7 to return to their initial positions. The front cylinder 1 drives the front die 9 and the die holder 11 to reset along the guide rail plate 2 with the guide rail slider 10. The filling machine turntable starts, transporting the tail-cut secondary tube fixture to the next station. At the same time, a new product fixture to be tail-cut enters the tail-cutting work position, and the die immediately enters the next round of operation, realizing batch and continuous heat-sealing tail-cutting processing of secondary tubes. Throughout the entire process, the wear-resistant material and stable structure of the die ensure the cutting accuracy and equipment stability during long-term operation. The simplified installation process also reduces the difficulty of subsequent maintenance, ultimately achieving high-quality and high-efficiency packaging of secondary tubes.

[0023] To facilitate the discharge of tailings, such as Figure 1-3 As shown, tail material funnels 12 are attached to both sides of the knife holder 11, and the tail material funnels 12 are arc-shaped.

[0024] In order to extend service life, such as Figure 1-3 As shown, the guide rail plate 2 is rectangular and made of stainless steel.

[0025] And for better elasticity, such as Figure 1-3 As shown, the elastic column 7 has a circular cross-section and is made of rubber.

[0026] Finally, in order to block materials, such as Figure 1 As shown, a baffle 13 is fixedly provided on the top of the tail material hopper 12.

[0027] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A heat-sealing and tail-cutting die for secondary tube throwing, comprising a front cylinder (1), characterized in that, The front cylinder (1) is slidably provided with a guide plate (2) at the top, and a rear cylinder (3) is slidably provided at the bottom of the guide plate (2). Buffers (4) are fixedly provided on both sides of the rear cylinder (3). An air inlet (5) is fixedly provided below the buffer (4). A rear die (6) is fixedly provided below the buffer (4). Multiple elastic columns (7) are fixedly provided at the bottom of the rear die (6). A guide rail slider (10) is slidably provided at the bottom of the guide plate (2). A knife holder (11) is fixedly provided at the bottom of the guide rail slider (10). A blow-up block (8) is fixedly provided at the top of the knife holder (11). A front die (9) is fixedly provided on one side of the knife holder (11).

2. The heat-sealing and tail-cutting die for secondary tube throwing according to claim 1, characterized in that, The tool holder (11) is fitted with tail material funnels (12) on both sides, and the tail material funnels (12) are arc-shaped.

3. The heat-sealing and tail-cutting die for secondary tube throwing according to claim 1, characterized in that, The guide rail plate (2) is rectangular and made of stainless steel.

4. The heat-sealing and tail-cutting die for secondary tube throwing according to claim 1, characterized in that, The elastic column (7) has a circular cross-section and is made of rubber.

5. The heat-sealing and tail-cutting die for secondary tube throwing according to claim 2, characterized in that, A baffle (13) is fixedly provided on the top of the tail material funnel (12).

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